io.sockets.emit和socket.broadcast.emit有什么区别?广播只是向每个人发出但发送它的套接字吗?
似乎它们可以互换使用:
io.sockets.on('connection', function (socket) {
//these should do the same thing
io.sockets.emit('this', { receivers: 'everyone'});
socket.broadcast.emit('this', { receivers: 'everyone but socket'}); //emits to everyone but socket
socket.emit('this', { receivers: 'socket'}); //emits to socket
});